Projectile



July 24, 1934.

Fig. 1

E. LEUSSLER 1,967,416

PROJECTILE Filed April 26, 1953 /77// Lswss/er-v Patented July 24, I934PROJECTII LE a '1 V Emil Leussler, Nuremberg, Germanflassignonby mesneassignments, to Remington Arms Company,l[noorporated, Bridgeport, Conn,a corporation of Delaware Application April 26, 1933, Serial No. 667,999In Germany December 9, 1931 SClaims. (Cruz-26) The so-called dividedcasing projectiles, which are used for hunting purposes, are intendedto.

stop the game as far as possible on the spot where it is 'hit, or atleast to obtain an exit wound in Q; order to insure a 'good blood trackfol-searchin for t the game.

In order to obtain this result, very many diiferent proposals have beenmade for the construction of such projectiles. Such proposals includeinserting a transverse partition in the projectile casing, with theobject of insuring that the front part of the projectile shall shatteron striking and penetrating the body of the game, and of retainingintact as far as possible the rear part of the projectile with its leadfilling in order to secure penetration and an exit wound. v

The insertion of a continuous transverse'partition in the projectilecasing involves difiiculties of manufacture and increase in cost, andlikewise 2Q; prevents the use of nickel plated sheet metal as a casingor jacket material.

To simplify and facilitate the insertion of the" partition, the jackethas been made in two parts,

but this weakens the projectile to such an extent- 2 that it may bedistorted or broken on passageitself, an annular fold beingmade at asuitable point in the jacket, whichfold has its sides in contact witheach other, and has an internal #0:; diameter of such dimensions thatescape or scat tering of the rear part of the projectile is prevented.

The invention likewise comprises a method of making the projectile byforming the annular f-t 'f01d in the jacket after the core metal for therear or heel part of the projectile has been pressed into place. Thecore metal for the front part of the projectile is not pressed in untilafter the formation of the said fold, so that the partition or fold@Qgconstitutes the plane of separation of the two projectile cores,which cores may be of difierent hardness.

A projectile is thereby formed which has a onepiece casing provided in asimple manner with i an internal transverse partition which serves toretain in position the projectile-filling in the rear portion of thecasing, so-that the projectile has a. considerable penetrating power andcanv produce an exit wound, while the front part of the projectile is soconstructed that it is shat' tered' on striking and penetrating the bodyof the game. I

The manufacture of the projectile is very simple and cheap because theinternal flange-like annular wall can be made very easily by providingthe'projectile casing, which previously has been provided with the rearhalfof the filling, with a peripheral groove and then upsettinglongitudinally the projectile casing until the groove is compressed toform an inwardly-projecting annular collar, which insures the internalsub-division of the projectile chamber and also determines the burstingzone. On the exterior of the projectile casing at the position of theinternal annular collar, there is seen only a circular slit, since inthe upsetting operation the initial groove is completely closed. Onetypical form of projectile embodying the invention is shown in theaccompanying drawing, wherein: 89

Fig. 1 is a longitudinal section of an empty projectile jacket. v t pFig. 2 is a section showing the same jacket with the metal of theheelcore or core section inplace. V j

Fig; 3 is'a section showing the jacket with the heelcore and the groovefrom. which thepartition is formed. V

Fig.4 is a section showingthe partition, folded inwardly, from thejacket wall upon the heel core.

Fig. 5 is a section of the finished projectile. Fig. 6 is an elevationof the finished projectile. The projectile casing or'j'acket, which inthe constructional example has a closed base but may be provided equallyWell with an open base, is first filled to a suitable height with a leadcharge 2, and an annular groove 3 is pressed in above said lead charge.By longitudinal upsetting of the jacket the sides of the groove arepressed inwardly, closing the groove and forming an inwardly projectingflat annular collar 3', which thus divides the projectile chamber. Thefront projectile chamber, which is still empty, is then likewiseprovided with a. lead filling or point core 4, and the tip and baseportion of the projectile are contracted or formed, so that the finishedprojectile shown in Figs. 5 and 6 is obtained.

The inwardly projecting annular collar or fold determines the burstingor shattering zone and,

in addition, prevents the heel core from being forced forward. The saidheel core 2 preferably consists of hard lead, while the point core 4,which is adapted to be flattened or shattered on 5 impact, may be ofsoft lead.

Upon striking a target such as the body of an animal the velocity of theprojectile 'point is abruptly and greatly reduced, but due to itsmomentum the heavy heel section tends to maintain its velocity, with theresult that the pointis flattened or spread, and its jacket torn apart;

practice the point core is often completely dis-,

persed, and the point jacket is frequently com- 5; pletely sheared offat the angle where it joins the fold 3, the heel section of theprojectile with the fold 3 remaining intact. If the velocity is lower,and/or the target is flesh rather than bone, the point section may be.merely flattened '0; or mushroomed, and the projectile as a wholecontinue to advance. Adequate penetration of all possible huntingtargets by projectiles having a wide range of velocities is thusinsured.

As shown in the drawing, the fold 3, which is integral with the jacket 1and formed therefrom by the sequence of simple operations heretoforedescribed, is preferablyso located as toprovide both a heel section anda point section of sub-.

. stantial size, and likewise projects inwardly from '3 the jacket asuflicient distance to effect a sub-'- stantial separation between theheel and point cores. Applicant has thus in effect combined twoprojectiles in one. The point section is areadily deformable projectilewhich mushrooms on im- 53 pact with flesh, and the heel sections is adifiicultly deformable projectile which penetrates Applicant thusrealizes the ideal of hard bone. e V

a projectile which produces the desired effect on the game, regardlessof the range or the part of 5, the animal which is struck. I The newform of projectile or shell may also be employed, within the scope ofthe inventiornfor explosive projectiles, signalling projectiles and thelike, wherein use is made of partitioned casings.

53 What is claimed is:

harder metal, and a partition 'integral with said jacket partiallyseparatingsaid cores.

l. A projectile comprising a one-piece jacket, a point core ofrelatively soft metal, a heel core of 2. A projectile comprising aone-piece-jacket, a point core of relatively soft metal, a heel core ofharder metal, and a closed fold in said jacket metal forming an inwardlyextending annular transverse partition substantially separating saidheelcore from said point core.

, 3. A'projectile comprising a one-piece jacket, a

point core of relatively soft metal, a heel core of harder metal, and aclosed fold in said jacket metal forming an inwardly extending annulartransverse partition substantially separating said heel core from saidpoint core and protecting said heel core against deformation on impactof the projectile against a target. 7

4. A projectile comprising a one-piece jacket, a

,point core of relatively soft metal, a heel core of harder metal, and aclosed fold in said jacket metal forming an inwardly extending annulartransverse partition substantially separating said heel core from saidpoint core, said fold facilitating the disruption of the point sectionof the projectile upon impact while protecting the heel section.

5. A jacketed projectile comprising readily deformable point anddiflicultly deformable heel sections of substantially equal length, thejunction of said sectionscomprising a fold in the jacket metal formingan annular; transversely disposed partition of substantial width,whereby the projectile is caused to separate at said partition on impactagainst atarget. 7

6. A projectile comprising a core and a jacket surrounding said core,said jacket comprising an integralinwardly extending closed fold formingan annular transversely disposed partition partially dividing said coreinto two sections each of substantial size, said fold extending inwardlyfor a substantial distance, whereby the sections are separated onimpactof said projectile against atarget.

7. A projectile comprising a core and a jacket surrounding said core,said jacket comprising an integral inwardly extending closed foldforming an annular transversely disposed'partition partially dividingsaid core into two sections each of substantial size, said foldextendinginwardly a substantial distance anddetermining a line on which saidprojectile separates on impact of the projectile against a target andlikewise protecting the heel section from deformation on such impact. vi

8, A projectile comprising a heel core; a point core; a jacketsubstantially covering the exterior surface of both said cores; and apartition integral with said jacketextending inwardly'therefrom adistahcesuflicient to substantially separate said cores and determine aline' on which said projectile separates on impact against a target.

' EMII LEUSSLER.

